Kanthal (alloy): Difference between revisions
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Last paragraph didn't make much sense without reading the source. Added that the source referred to vaping, compared to mass-manufactured heating elements, etc. |
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Kanthal is used in heating elements due to its flexibility, durability and tensile strength. Its uses are widespread, for example in toasters, home and industrial heaters, kilns and diffusion heaters (used in the making of crystalline silicon).<ref>{{Cite web|url=http://www.kanthal.com/en/products/|title=Kanthal heating technology products — Kanthal|website=www.kanthal.com|access-date=2017-01-04}}</ref><ref>{{Cite web|url=http://www.vapingpost.com/2016/03/08/a-chemists-advice-dont-dry-burn-your-coil/|title=A chemist's advice: Don't Dry-Burn your coil|last=Harlay|first=Jérôme|date=2016-03-08|website=Vaping Post|access-date=2017-01-04}}</ref> |
Kanthal is used in heating elements due to its flexibility, durability and tensile strength. Its uses are widespread, for example in toasters, home and industrial heaters, kilns and diffusion heaters (used in the making of crystalline silicon).<ref>{{Cite web|url=http://www.kanthal.com/en/products/|title=Kanthal heating technology products — Kanthal|website=www.kanthal.com|access-date=2017-01-04}}</ref><ref>{{Cite web|url=http://www.vapingpost.com/2016/03/08/a-chemists-advice-dont-dry-burn-your-coil/|title=A chemist's advice: Don't Dry-Burn your coil|last=Harlay|first=Jérôme|date=2016-03-08|website=Vaping Post|access-date=2017-01-04}}</ref> |
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For vaping, Kanthal is durable enough to withstand the temperatures needed, but flexible and cheap enough to be practical, |
For vaping, Kanthal is durable enough to withstand the temperatures needed, but flexible and cheap enough to be practical, compared to other types of resistance wire used in vaping such as Nichrome, titanium-alloy and stainless steel.<ref>{{Cite web|url=https://www.misthub.com/blogs/vape-tutorials/113485637-tutorial-nichrome-vs-ni-200-vs-titanium-vs-kanthal-vs-stainless-steel-vape-wire|title=Tutorial: NiChrome vs Ni-200 vs Titanium vs Kanthal vs Stainless Steel {{!}} MistHub|last=misthub.com|website=www.misthub.com|date=21 March 2016 |access-date=2017-01-04}}</ref> |
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== See also == |
== See also == |
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Revision as of 03:57, 22 August 2024
Kanthal is the trademark for a family of iron-chromium-aluminium (FeCrAl) alloys used in a wide range of resistance and high-temperature applications. Kanthal FeCrAl alloys consist of mainly iron, chromium (20–30%) and aluminium (4–7.5 %). The first Kanthal FeCrAl alloy was developed by Hans von Kantzow in Hallstahammar, Sweden. The alloys are known for their ability to withstand high temperatures and having intermediate electric resistance. As such, it is frequently used in heating elements. The trademark Kanthal is owned by Alleima AB.
Characteristics
For heating, resistance wire must be stable in air when hot. Kanthal FeCrAl alloy forms a protective layer of aluminium oxide (alumina).[1] Aluminium oxide has high thermal conductivity but is an electrical insulator, so special techniques may be required to make good electrical connections.
Ordinary Kanthal FeCrAl alloy has a melting point of 1,425 °C (2,597 °F). Special grades can be used as high as 1,500 °C (2,730 °F).[2]
Depending on specific composition the resistivity is about 1.4 μΩ·m and temperature coefficient is +49 ppm/K (+49×10−6 K−1).
Uses
Kanthal is used in heating elements due to its flexibility, durability and tensile strength. Its uses are widespread, for example in toasters, home and industrial heaters, kilns and diffusion heaters (used in the making of crystalline silicon).[3][4]
For vaping, Kanthal is durable enough to withstand the temperatures needed, but flexible and cheap enough to be practical, compared to other types of resistance wire used in vaping such as Nichrome, titanium-alloy and stainless steel.[5]
See also
References
- ^ "Advanced Topic: Oxidation Resistant Materials" (PDF). Archived from the original (PDF) on 2005-03-20.
- ^ US 7027722, Uemori, Susumu & Aitani, Takashi, "Electric heater for a semiconductor processing apparatus", issued 2006-04-11
- ^ "Kanthal heating technology products — Kanthal". www.kanthal.com. Retrieved 2017-01-04.
- ^ Harlay, Jérôme (2016-03-08). "A chemist's advice: Don't Dry-Burn your coil". Vaping Post. Retrieved 2017-01-04.
- ^ misthub.com (21 March 2016). "Tutorial: NiChrome vs Ni-200 vs Titanium vs Kanthal vs Stainless Steel | MistHub". www.misthub.com. Retrieved 2017-01-04.
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